What is RockMongo?
RockMongo is a MongoDB administration tool using which you can manage your server, databases, collections, documents, indexes, and a lot more. It provides a very user-friendly way for reading, writing, and creating documents. It is similar to PHPMyAdmin tool for PHP and MySQL.
How do I access RockMongo?
Access RockMongo web console Open the web browser, and navigate to http://IP-Address/rockmongo. You should see the following screen. Enter the username and password. The default username and password is admin/admin.
What is a MongoDB query?
MongoDB Query is a way to get the data from the MongoDB database. While performing a query operation, one can also use criteria or conditions which can be used to retrieve specific data from the database. MongoDB provides the function names as db.
What language is MongoDB queries?
MongoDB queries are based on JavaScript. The language is reasonably easy to learn and many tools are available to query MongoDB data using SQL syntax. When querying data, you have an extraordinary range of options, operators, expressions and filters.
How do I install RockMongo?
Install RockMongo on CentOS 7
- Install Apache. Since RockMongo is web-based, you need to have a running web server.
- Setup the Firewall. In order to access RockMongo from your browser, you need to allow the http traffic to get through the firewall.
- Install PHP 5.
- Install MongoDB.
- Configure MongoDB.
- Install RockMongo.
How many types of Sharding exist in MongoDB?
How many types of sharding exist in MongoDB? Explanation: MongoDB have two basic approaches: vertical scaling and sharding. 4.
Why use MongoDB vs SQL?
While MongoDB is more flexible and ensures high and diverse data availability, a SQL Database operates with the ACID (Atomicity, Consistency, Isolation, and Durability) properties and ensures greater reliability of transactions.
What is shard key in MongoDB?
The shard key is either a single indexed field or multiple fields covered by a compound index that determines the distribution of the collection’s documents among the cluster’s shards. Each range is associated with a chunk, and MongoDB attempts to distribute chunks evenly among the shards in the cluster.
What is sharding Crypto?
What Is Sharding? Sharding is a database partitioning technique used by blockchain companies with the purpose of scalability, enabling them to process more transactions per second. Sharding can help reduce the latency or slowness of a network since it splits a blockchain network into separate shards.